thefrozencoder

Programming and Technology blog

Hyper-V - "Video Remoting Was Disconnected" Error

Started to get the error "Video Remoting Was Disconnected" when connecting to a Hyper-V VM using the Admin Console on a local machine (Connecting to the VM via RDP worked fine). All of the more relevant fixes talk about changing the settings on the NIC card which seemed a bit far fetched however I tried them all and none work.

First off my config.

  • Windows 10 device connected to an AD domain
  • My domain login account has domain admin privileges
  • My domain login account is part of the local computers Builtin Administrators group

The problem eventually was solved by resetting the C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys folder permissions using the following commands

md c:\temp

icacls C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys /t /c > c:\temp\BeforeScript_permissions.txt

takeown /f "C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys" /a /r

icacls C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys /t /c /grant "NT AUTHORITY\System:(F)"

icacls C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys /t /c /grant "NT AUTHORITY\NETWORK SERVICE:(R)"

icacls C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys /t /c /grant "BUILTIN\Administrators:(F)"

icacls C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys /t /c > c:\temp\AfterScript_permissions.txt

Restart-Service TermService -Force

I also rebooted the machine just in case.

I think that something must have been weird-ed out when I joined the computer to the domain / renamed it or something along those lines.

This is not a definitive way to solve this problem as it was a last attempt to fix the issue when all other suggestions failed. You have been warned! lol

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